import { EventEmitter } from 'events';

const myEmitter = new EventEmitter();

function greetHandler(name) {
    console.log('Hello ' + name);
}
function goodbyeHandler(name) {
    console.log('Goodbye ' + name);
}

myEmitter.on('greet', greetHandler);
myEmitter.on('goodbye', goodbyeHandler);

myEmitter.emit('greet', 'John'); 
myEmitter.emit('goodbye', 'John'); 

myEmitter.on('error', (err) => {
    console.log('An Error Occured:', err);
});

myEmitter.emit('error', new Error('Something went wrong'));